The "Circle" seating group from Walter Knoll is far from the norm and is not for every one unless they have a serious love of outrageously cool furniture. The Circle is made up of four parts that create a semicircular shape with a sloping back where the "height is the only thing that remains constant and the connection of convex and concave shapes results in a sweeping sculpture". Design by UN Studio / Ben van Berkel. See the entire collection classic modern and contemporary furniture for the home of commercial setting from Walter Knoll here.